Improved drilling apparatus



A. J. FULLAM. DRILLING APPARATUS.

No. 67,284. Patented July 30, 1867.

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A. J. FULLAM, or SPRINGFIELD, VERMONT.

' Lam Patent Nb. 67,284, dated July30,1867.

IMPROVED DRILLING APPARATUS.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, A. J'. FULLAM, of Springfield, inthe county of Windsor, and State of Vermont, have invented a new. and useful Improvement in Application of Stcam-Power; and I do hereby declare that the fol- V lowing is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

This invention consists in adapting steam-power to operations which have hitherto been performed by hand, such, for instance, as drilling holes in the sides of ships, or in heavy machinery, of either wood or iron, or in I repairing locomotives, in all of which cases (and many more which mightbe mentioned) such work is done with the common hand-ratchet drill or other hand tools, which is well knownto be a tedious and laborious operation,

Referring to the drawing- I v Figure 1 represents a portable drilling machine, of a construction similar to machines of the some kind used in machine shops for drilling or boring purposes.

Figure 2 is a top or plan view of the same.

Similar letters of reference indicate like parts.

it. represents the drill-stand, to which the drill-mandrel is attached in the usual manner. B is the mandrel. 0 represents an iron plate, to which the drill is fastened by the clamp D, which is intended to illustrate the manner in which the drill is applied. E represents a small steam engine, securely attached to the back of. the

V drill-stand, the pitman of which, E, is attached to n-wrist-pin on the fly-wheel F. Upon the shaft of the flywheel is the pinion a whihh drives the drill.-

Theiengine is, of course, built of suitable size and proportion for the work to be performed, which, for all ordinary purposes, would allow of its being light enough to be easily handled and attached to any piece of machinery and set in any position-to drill holes of any angle or inclination. To allow of this freedom of adjustment I connect the engine with the 'steamboiler bya flexible tube, marked Jin the drawing. Rigid steam pipes with flexible joints may answer the same purpose, and, where the drill can remain stationary for" a length of time, entirely rigid metallic connections would, of course, answer the purpose. The exhaust pipe K may be either rigid or vflexible, for all or nearly all purposes.

,What I claim, and desire to secure by'Lctters Patent, is-

The arrangement of the drill-stand A, engine E securely attached thereto, pitman E, fly-wheel F, pinion a, drill B, and pipe J, substantially as described for the purpose specified. A. J. FULLAM. Witnesses:

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